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Potential Interior Structures and Habitability of Super-Earth Exoplanets LHS 1140 b, K2-18 b, TOI-1452 b and TOI-1468 c
Mangesh Daspute, Amri Wandel, Ravi Kumar Kopparapu +3
We analyze four super-Earth exoplanets, LHS 1140 b, K2-18 b, TOI-1452 b, and TOI-1468 c, which orbit M-dwarf stars in the habitable zone. Their relative proximity, within 40 parsec…
Projections of Earth's technosphere: Scenario modeling, worldbuilding, and overview of remotely detectable technosignatures
Jacob Haqq-Misra, George Profitiliotis, Ravi Kopparapu
This study uses methods from futures studies to develop a set of ten self-consistent scenarios for Earth's 1000-year future, which can serve as examples for defining technosignatur…
The challenge of detecting remote spectroscopic signatures from radionuclides
Jacob Haqq-Misra, Vincent Kofman, Ravi K. Kopparapu
The characterization of exoplanetary atmospheres through transit spectra is becoming increasingly feasible, and technology for direct detection remains ongoing. The possibility of…
Interpolation and synthesis of sparse samples in exoplanet atmospheric modeling
Jacob Haqq-Misra, Eric T. Wolf, Thomas J. Fauchez +1
This paper highlights methods from geostatistics that are relevant to the interpretation, intercomparison, and synthesis of atmospheric model data, with a specific application to e…
Detectability of Solar Panels as a Technosignature
Ravi Kopparapu, Vincent Kofman, Jacob Haqq-Misra +2
In this work, we assess the potential detectability of solar panels made of silicon on an Earth-like exoplanet as a potential technosignature. Silicon-based photovoltaic cells have…
Artificial Greenhouse Gases as Exoplanet Technosignatures
Edward W. Schwieterman, Thomas J. Fauchez, Jacob Haqq-Misra +6
Atmospheric pollutants such as CFCs and NO have been proposed as potential remotely detectable atmospheric technosignature gases. Here we investigate the potential for artifi…